Abstract: The present display device is a retinal scan display device including: a projection optical system configured to project an image to a retina of an eye; a distortion correcting unit configured to correct a distortion of the image; an image inverting unit configured to invert the image; and a storage unit configured to store correction data for correcting the distortion of the image when the image is projected to a left eye and correction data for correcting the distortion of the image when the image is projected to a right eye, wherein, based on a switching signal that represents that a side at which the projection optical system is arranged has been switched from one eye side to the other eye side, the distortion correcting unit performs distortion correction, by switching from correction data corresponding to one eye to correction data corresponding to the other eye, and the image inverting unit performs image inversion.

Abstract: The present display device is a retinal scan display device including: a projection optical system configured to project an image to a retina of an eye; a distortion correcting unit configured to correct a distortion of the image; an image inverting unit configured to invert the image; and a storage unit configured to store correction data for correcting the distortion of the image when the image is projected to a left eye and correction data for correcting the distortion of the image when the image is projected to a right eye, wherein, based on a switching signal that represents that a side at which the projection optical system is arranged has been switched from one eye side to the other eye side, the distortion correcting unit performs distortion correction, by switching from correction data corresponding to one eye to correction data corresponding to the other eye, and the image inverting unit performs image inversion.

Abstract: The present invention provides a method for forming a font of a character or a symbol including inputting a plurality of coordinate data lying on a contour of a stroke specifying a dash of the character or the symbol, preparing data of the stroke including a plurality of input coordinate data, having one of the input coordinate data as coordinate data specifying the beginning point of the stroke or as coordinate data specifying the end point of the stroke, and forming a font of the character or the symbol including the data of one or more of the strokes. The invention also includes a method of determining whether a portion of the font of the character or symbol is blurred or bled, and alters the font of the character or symbol accordingly. The determination of blurring or bleeding may be made based upon at least one of ink quantity, writing speed, paper construction, or other appropriate factors.